E-I-E-I-O is an achievement that is unlocked by completing the breeding log.

You Had a Chicken
You Had a Rabbit
You Had a Chinchompa
You Had a Sheep
You Had a Spider
You Had a Zygomite
You Had a Cow
You Had a Yak
You Had a Dragon


  • This achievement, and all of the other achievements that are required to complete it, are references to the children's nursery rhyme Old MacDonald Had a Farm.
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